3031749c2d
This commit removes trailing whitespace from lines in files. Almost all files are affected, as the BSD license copyright header had trailing whitespace on 4 lines in it [hence the number of files reporting 8 lines changed in the diffstat]. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> [Thomas: remove spaces before tabs in libs] [Thomas: remove more trailing spaces in non-C files] Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
116 lines
4.8 KiB
C
116 lines
4.8 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VIRTIO_NET_H_
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#define _VIRTIO_NET_H_
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#include <stdint.h>
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#define VQ_DESC_NUM 256
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/* Used to indicate that the device is running on a data core */
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#define VIRTIO_DEV_RUNNING 1
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/*
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* Structure contains variables relevant to TX/RX virtqueues.
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*/
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struct vhost_virtqueue
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{
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struct vring_desc *desc; /* Virtqueue descriptor ring. */
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struct vring_avail *avail; /* Virtqueue available ring. */
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struct vring_used *used; /* Virtqueue used ring. */
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uint32_t size; /* Size of descriptor ring. */
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uint32_t vhost_hlen; /* Vhost header length (varies depending on RX merge buffers. */
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volatile uint16_t last_used_idx; /* Last index used on the available ring */
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volatile uint16_t last_used_idx_res; /* Used for multiple devices reserving buffers. */
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} __rte_cache_aligned;
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/*
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* Device structure contains all configuration information relating to the device.
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*/
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struct virtio_net
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{
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struct vhost_virtqueue *virtqueue_tx; /* Contains all TX virtqueue information. */
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struct vhost_virtqueue *virtqueue_rx; /* Contains all RX virtqueue information. */
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struct virtio_memory *mem; /* QEMU memory and memory region information. */
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struct ether_addr mac_address; /* Device MAC address (Obtained on first TX packet). */
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uint32_t flags; /* Device flags. Only used to check if device is running on data core. */
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uint32_t vlan_tag; /* Vlan tag for device. Currently set to device_id (0-63). */
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uint32_t vmdq_rx_q;
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uint64_t device_fh; /* device identifier. */
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uint16_t coreid;
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volatile uint8_t ready; /* A device is set as ready if the MAC address has been set. */
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volatile uint8_t remove; /* Device is marked for removal from the data core. */
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uint32_t virtio_idx; /* Index of virtio device */
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uint32_t dom_id; /* Domain id of xen guest */
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} ___rte_cache_aligned;
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/*
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* Device linked list structure for configuration.
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*/
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struct virtio_net_config_ll
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{
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struct virtio_net dev; /* Virtio device. */
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struct virtio_net_config_ll *next; /* Next entry on linked list. */
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};
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/*
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* Information relating to memory regions including offsets to addresses in QEMUs memory file.
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*/
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struct virtio_memory_regions {
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uint64_t guest_phys_address; /* Base guest physical address of region. */
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uint64_t guest_phys_address_end; /* End guest physical address of region. */
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uint64_t memory_size; /* Size of region. */
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uint64_t userspace_address; /* Base userspace address of region. */
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uint64_t address_offset; /* Offset of region for address translation. */
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};
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/*
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* Memory structure includes region and mapping information.
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*/
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struct virtio_memory {
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uint32_t nregions; /* Number of memory regions. */
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struct virtio_memory_regions regions[0]; /* Memory region information. */
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};
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/*
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* Device operations to add/remove device.
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*/
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struct virtio_net_device_ops {
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int (* new_device)(struct virtio_net *); /* Add device. */
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void (* destroy_device) (volatile struct virtio_net *); /* Remove device. */
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};
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struct vhost_net_device_ops const * get_virtio_net_callbacks(void);
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#endif
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